globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2014.01.022
论文题名:
Paleobiogeography of the lotus plant (Nelumbonaceae: Nelumbo) and its bearing on the paleoclimatic changes
作者: Li Y.; Smith T.; Svetlana P.; Yang J.; Jin J.-H.; Li C.-S.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2014
卷: 399
起始页码: 284
结束页码: 293
语种: 英语
英文关键词: Lotus ; Nelumbo ; Nelumbonaceae ; Paleobiogeography ; Paleoclimatic change
英文摘要: The historical reconstruction of the origin and dispersal of plant taxa in space and time facilitates a better understanding of their modern distribution patterns. However, most studies of paleobiogeography have focused on terrestrial plants, and the distribution changes of aquatic plants are less well understood. Here we study the lotus plant Nelumbo (Nelumbonaceae), an aquatic perennial herb, with a disjunctive distribution across East, South and Southeast Asia-North Australia and North America. The reproductive organs of Nelumbo changchangensis He et Jin from the Eocene of Hainan, China are supplementarily described. Analysis of the spatial and temporal distributions of Nelumbo in the geologic past indicates that the genus first occurs in mid-latitude area of Laurasia in the Early Cretaceous, then becomes widespread in North America and Eurasia and expands into South America during the Late Cretaceous, and reaches its maximum northern limit during the Eocene. The genus persists and thrives in North America and Eurasia until the Pliocene. The Pleistocene ice age causes the extinction of Nelumbo in Europe and central Asia, and its populations in North American and Asia are also restricted to refuges of lower latitude. Like the terrestrial plants Metasequoia (Cupressaceae) and Nordenskioeldia (Trochodendraceae), the fluctuations of Nelumbo distribution ranges are also linked to climatic changes in the Cenozoic. The cooling climate and increasing seasonality in the Eocene of East Asia may favor the origin of tubers and the differentiating of the ecotypes in lotus, which allow the deciduous type to survive in cold winters. © 2014 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69417
Appears in Collections:过去全球变化的重建

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作者单位: State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Xiangshan, Beijing 100093, China; Directorate Earth and History of Life, Royal Belgian Institute of Natural Sciences, 29 Rue Vautier, B-1000 Brussels, Belgium; Laboratory of Palaeobotany, Komarov Botanical Institute, Russian Academy of Sciences, Saint Petersburg 197376, Russian Federation; School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; University of Chinese Academy of Sciences, Beijing 100049, China

Recommended Citation:
Li Y.,Smith T.,Svetlana P.,et al. Paleobiogeography of the lotus plant (Nelumbonaceae: Nelumbo) and its bearing on the paleoclimatic changes[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2014-01-01,399
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